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Fundamentals of modern ground control management in Australian underground coal mines

International Journal of Mining Science and Technology 2020年第5期30卷 573-582页

作者： jason emery Ismet Canbulat Chengguo Zhang School of Minerals and Energy Resources Engineering University of New South WalesSydneyNSW 2052Australia

Underground coal mining is inherently hazardous,with uncontrolled ground failure regarded as one of only several critical risks for multiple fatality ***,implementation and management of overarching systems and procedures for maintaining strata control is an important step to mitigating the impact of ground failure hazards at a mine site operational *** paper summarised the typical pro-active ground control management system(PGCMS)implemented in various Australian underground coal *** produces approximately 100 million tonnes a year of metallurgical and thermal coal from approximately 30 of the world’s safest longwall mines operating in New South Wales and *** increased longwall productivity required to achieve both high levels of safety and profitability,places significant emphasis on the reliability of pro-active ground control management for longwall mining *** depths,adverse geological conditions,elevated variable stress regimes and weaker ground conditions,coupled with an industry wide need for increased development rates continue to make ground control management *** control management is not only about ground support and pillar design though but also a structured process that requires a coordinated effort from all levels of the workforce to both minimise the occurrence of adverse geotechnical events and mitigate the potential risks when they do *** PGCMS presented in this paper is proven to provide both a safer and more productive mine environment through minimisation of unplanned *** critical elements of the method are presented in detail and demonstrate the utility and value of a ground control management system that has potential for implementation in underground coal mining globally.

关键词： Strata control Ground control Management Longwall Safety Risk

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Risk management in open cut coal mines

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International Journal of Mining Science and Technology 2013年第3期23卷 369-374页

作者： Ismet Canbulat John Hoelle jason emery Undergrounds Anglo American Metallurgical Coal Brisbane 4000 Australia Open Cut Geotechnical Engineering Group Anglo American Metallurgical Coal Brisbane 4000 Australia

There are a number of geotechnical systems used at open cut operations of Anglo American's Metallurgical Coal business unit in Australia. These systems are mainly mine site specific, based on geological information and used as hazard plans. They are qualitative and reliant upon the experienced judgement of site based engineers and the general workforce. They are not suitable for calculating the associated risks of geological structures and mining responses. A uniform risk rating system that can be used to provide an unbiased, standard and quantifiable assessment of the risk from highwall and lowwall failures is therefore developed using the experience gained with such systems in Anglo American's South African operations. This system is a semi-quantitative risk rating system and takes into account the relative differences in the importance of hazards as experienced at each mine site as a result of different combinations of geotechnical factors and mining conditions. It is based on critical geotechnical and other parameters that have been identified by site mining engineers, geologists and geotechnical engineers. The primary advantage of this risk rating system is that all open cut mines in the Anglo American's Metallurgical Coal operations use a near identical system, which enables the user to compare the risk after each blast and with other mines. The system can be adjusted to meet local mine specific requirements. The implementation of this system, a computer program that automatically calculates the risks and recommends predetermined controls, has been made as practical and as easy to use as possible. This program can be used by personnel from other mining disciplines not directly related to geotechnical engineering.

关键词： Geotechnical OpenRisk Semi-quantitative Risk management Open cut Ground control

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